engleski

Tags/s - RFID reader-tag communication throughput using Gen2 Q-algorithm frame adaptation scheme

Radio Frequency Identification (RFID) became the most popular and used technology for items identifi- cation and tracking. Typical scenario of its application is a pallet of products bearing RFID tag, which passes by portal equipped with RFID antennas. In such scenario it is important to identify all tags as soon as possible. Access control mechanism widely used in RFID system is Dynamic Framed Slotted ALOHA (DFSA), which throughput can be maximized if one can estimate the correct number of tags and set the size of the next DFSA frame accord- ingly. Gen2 standard in RFID suggests usage of Q-algorithm for adapting frame size in DFSA. In this paper we provide 3 typical scenarios regarding the physical setup of an Gen2 RFID reader, with all significant details that allows to measure total time to identify all tags. As a result we provide tag identification time in terms of tags/s, by exploiting Q-algorithm frame adaptation scheme.

ALOHA; Dynamic Frame Slotted ALOHA; Gen2 throughput; tags/s

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